gcloud 提交：使用 --file 参数指定 Dockerfile 似乎不起作用

Question

在我的项目中，Dockerfiles并没有存储在我想在图像中复制的文件所在的位置。类似：

root
Dockerfiles:
app_name1:
dockerfile1
...
folder
app1
app2
...
cloudbuild

我有一个cloudbuild.yaml是这样的：

steps:
- name: gcr.io/cloud-builders/docker
args:
- build
- '--tag=eu.gcr.io/$PROJECT_ID/${_IMAGE_NAME}:${_STAGE}'
- **'-f ./Dockerfiles/${_IMAGE_NAME}/Dockerfile'**
- .
images: [
'eu.gcr.io/$PROJECT_ID/${_IMAGE_NAME}'
]

我从这样的根构建图像：

gcloud builds submit .
--config=cloudbuild.yaml
--substitutions [...]
.

我在我的GCP Bucket中进行了检查，gcloud-submit(.(中指定的源已成功上传，因此应该可以在中访问/工作区/。

但是构建失败，出现以下错误：

unable to prepare context: unable to evaluate symlinks in Dockerfile path: lstat /workspace/ .: no such file or directory

他似乎不想使用--file参数中指定的Dockerfile。使用这个论点，我找不到cloudbuild.yaml的例子。知道发生了什么事吗？

Answer 1

如果您的文件结构准确，则可能是您引用了错误的Dockerfile路径。

健全性检查是首先在本地运行docker build：

PROJECT_ID="..."
_IMAGE_NAME="app1"
_STAGE="dev"
docker build 
--tag=gcr.io/$PROJECT_ID/${_IMAGE_NAME}:${_STAGE} 
--file=./Dockerfiles/${_IMAGE_NAME}/Dockerfile 
.

以下对我有效：

.
├── cloudbuild.yaml
├── Dockerfiles
│   └── app1
│       └── Dockerfile
└── folder
└── app1
└── greeting.txt

和：

./Dockerfiles/app1/Dockerfile:

FROM busybox
WORKDIR /tmp
COPY ./folder/app1/greeting.txt ./greeting.txt
ENTRYPOINT ["cat","/tmp/greeting.txt"]

和：

cloudbuild.yaml:

steps:
- name: docker
args:
- build
- --tag=gcr.io/$PROJECT_ID/${_IMAGE_NAME}:${_STAGE}
- --file=./Dockerfiles/${_IMAGE_NAME}/Dockerfile
- .
images:
- gcr.io/$PROJECT_ID/${_IMAGE_NAME}

和：

PROJECT="..."
QUESTION="64972175"
gcloud builds submit . 
--config=./cloudbuild.yaml 
--substitutions=_IMAGE_NAME=app1,_STAGE="dev" 
--project=${PROJECT}

收益率：

BUILD
Pulling image: docker
Using default tag: latest
latest: Pulling from library/docker
Digest: sha256:9170b902404a630a982a2a6473442d3e2cc2342b66345f7a9cf148f8affcf5d3
Status: Downloaded newer image for docker:latest
docker.io/library/docker:latest
Sending build context to Docker daemon  6.144kB
Step 1/4 : FROM busybox
latest: Pulling from library/busybox
Digest: sha256:a9286defaba7b3a519d585ba0e37d0b2cbee74ebfe590960b0b1d6a5e97d1e1d
Status: Downloaded newer image for busybox:latest
---> f0b02e9d092d
Step 2/4 : WORKDIR /tmp
---> Running in 6ffe8d2b3f56
Removing intermediate container 6ffe8d2b3f56
---> 51dcdc2e141a
Step 3/4 : COPY ./folder/app1/greeting.txt ./greeting.txt
---> 7459813216f3
Step 4/4 : ENTRYPOINT ["cat","/tmp/greeting.txt"]
---> Running in 25362a24391b
Removing intermediate container 25362a24391b
---> 398b1f4a60e2
Successfully built 398b1f4a60e2
Successfully tagged gcr.io/[[PROJECT]]/app1:dev
PUSH
Pushing gcr.io/[[PROJECT]]/app1
The push refers to repository [gcr.io/[[PROJECT]]/app1]
8b5d68988e85: Preparing
d2421964bad1: Preparing
d2421964bad1: Layer already exists
8b5d68988e85: Pushed
dev: digest: sha256:d33bd458b8df930fc3338110f8369743ac74068b8a527c5f59958ee1ce1182ff size: 734
DONE